Los Angeles County health officials Wednesday confirmed the first locally acquired case of the mosquito-borne illness dengue of the 2025 mosquito season.

The patient is a San Gabriel Valley resident with no history of travel to areas where dengue is endemic. According to the county Department of Public Health, the unidentified person developed symptoms in late September and is recovering.

“While the potential risk for widespread dengue virus transmission in Los Angeles County remains low, this case highlights the presence of infected mosquitoes locally and underscores the importance of preventive measures to control the spread of this virus,” health officials said in a statement.

The Department of Public Health reported a total of 14 locally acquired dengue cases last year. Such infecti

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